Dryburgh H
Housing, Family and Social Statistics Division at Statistics Canada, Ottawa, Ontario, K1A 0T6.
Health Rep. 2000 Oct;12(1):9-19 (Eng); 9-21 (Fre).
This article examines trends in teenage pregnancy in Canada, focussing on induced abortions, live births and fetal loss among women aged 15 to 19 in 1997.
The data come from the Hospital Morbidity Data Base and the Canadian Vital Statistics Data Base at Statistics Canada, and the annual Therapeutic Abortion Survey, conducted by the Canadian Institute for Health Information. Data on abortions performed on Canadian residents in the United States are from an annual survey of selected states. International data are from the Alan Guttmacher Institute.
Pregnancy rates, abortion rates, live birth rates and fetal loss rates are calculated using population counts of women in the age groups 15 to 17, 18 to 19, and 15 to 19. The percentages of pregnancies that ended in the three outcomes are also calculated for these years.
The teenage pregnancy rate declined from 1994 to 1997, reflecting lower teenage birth and fetal loss rates. Through this period the abortion rate remained stable, with the result that slightly more than half of all teenage pregnancies ended in abortion by 1997. Younger teens are more likely to have an abortion than to give birth. The majority of pregnancies among older teens end in a live birth, although the number of live births is decreasing.
本文研究加拿大青少年怀孕的趋势，重点关注1997年15至19岁女性的人工流产、活产和胎儿流失情况。
数据来自加拿大统计局的医院发病率数据库和加拿大生命统计数据库，以及加拿大卫生信息研究所进行的年度治疗性流产调查。关于在美国为加拿大居民实施的堕胎数据来自对部分州的年度调查。国际数据来自艾伦·古特马赫研究所。
使用15至17岁、18至19岁以及15至19岁年龄组女性的人口计数来计算怀孕率、流产率、活产率和胎儿流失率。还计算了这些年份以这三种结果告终的怀孕百分比。
1994年至1997年青少年怀孕率下降，这反映出青少年出生率和胎儿流失率降低。在此期间，流产率保持稳定，结果到1997年，超过一半的青少年怀孕以流产告终。年龄较小的青少年更有可能进行人工流产而非生育。年龄较大的青少年中的大多数怀孕以活产告终，尽管活产数量在减少。
